United States. Soil Conservation Service. (1978). Important farmlands, Collin County, Texas. U.S. Dept. of Agriculture, Soil Conservation Service.
Chicago Style (17th ed.) CitationUnited States. Soil Conservation Service. Important Farmlands, Collin County, Texas. [Washington]: U.S. Dept. of Agriculture, Soil Conservation Service, 1978.
MLA (9th ed.) CitationUnited States. Soil Conservation Service. Important Farmlands, Collin County, Texas. U.S. Dept. of Agriculture, Soil Conservation Service, 1978.
Warning: These citations may not always be 100% accurate.